In the Synthesis of Fatty Acids, What Is the Next $\mathrm{NADP}^{+}$

In the synthesis of fatty acids, what is the next step in the reaction of S-acetoacetyl acyl carrier protein?

A) reduction with NADPH
B) oxidation with $\mathrm{NADP}^{+}$
C) alkylation at C-2
D) condensation with $\mathrm{CH}_{3} \mathrm{CO}-\mathrm{S}-\mathrm{ACP}$